Tandem controlling mechanism for pressing machines



TANDEM CONTROLLING MECHANISM FOR PRESSING MACHINES E. DAVIS `lune 28,1932.

Original Filed Nov. ,22l 1926 3 Sheets-Sheet l I N VEN TOR.

W f/7M A TTORN E YS E. DAVIS 1,864,808

3 Sheets-Sheet 2 June 28, 1932.

TANDEM CONTROLLING MECHANISM FOR PRESSING MACHINES O'inal Filed Nov. 22,1926 I N VEN TOR. BY /QMZ-/f A "MMM Pf6/M A TTORN E YS,

June 2s, 1932. E. DAVIS 1,864,808

TANDEM coNTRoLLNg MEcHANIsM Fon PREssING MACHINES Original Filed NOV.22, 1926 5 Sheets-sheet 5 A TTORNEYS Patented June Z8, 1932 UNITEDIS'IA'I'Es -PATENT ori-ICE ERNEST DAVIS, 0F SYRAOUSE, NEW YORK, ASSIGNORT0 PROSPERITY IN C., 0F SYRAGUSE, NEW YORK, A CORPORATION OF NEW YORKTANDEM CONTROLLING MEGHANISM FOR PRESSING MACHINES Application ledNovember 22, 1926, Serial No. 149,904. Renewed November 19, 1931.

This invention relates to means for controlling the operations insequence of machines which are attended by one operator, particularlymachines in which the operator may be injured during a part of theiroperations as machines which have an opening and closing movement.

The invention has for its object a particularly simple and efficientmechanism by which the operator cannot be present at a machine while itis closing or going through the dangerous part of the operation (unlesshe uses a two hand controlling mechanism) and the next or adjacentmachine in the series or the machine he has just left, after arrangingwork thereon is automatically closed by the presence of the operator atanother machine in the series. v

The invention consists in the novel features and in the combinations andconstructions hereinafter set forth and claimed.

In describing this invention, reference is l had to the.accompanyingodrawings in which like characters designate correspondingparts in all the views.

Figure 1 is a diagrammatic view illustrating the connections between themechanisms for controlling the opening and closing of a series or set ofmachines.

Figure 2 is an enlarged detail view, partly in section, of the powermeans and the controlling means of each machine.

Fivure 3 is an elevation of a garment or laundry pressing machine towhich this controlling means is particularly applicable.

Figure 4 is a -diagrammatic plan view illustrating the layout of themachines on the lloor and the fencing aroun'd the machines. Thisinvention isparticularly applicable for controlling a set of two or morep ower Operated -pressing machines having a cycle of operations or acycle of opening and closing movements wherein the closing movementordinarily involves some danger to the operator, as for instance, thetype of uconventional garment and laundry platen presses, including ahead 1 movable toward and from a buck 2. In this type of machine thebuck is usually stationary and mounted upon a suitable frame 3, and thehead is carried at the front end of a yoke or lever 4 pivoted at 5between itsfends to a vstandard 6 rising from the frame, the lever beingconnected at 1 s rear end to motor .or power means or any other primemover.

The invention comprises means for controlling the operation of the powermeans includmg a, controlling member associated with each machine andarranged to be automatically moved in one direction by the operatorapproaching the machine, the controlling member of each machine beingconnected to the controlling means of another machine or the nextmachine in series to effect the closing of the next machine, all wherebythe closing of one machine can not be effected while the operator isattending that machine except as will be hereinafter explained.

As here illustrated, the power means includes a cylinder 7, and a piston8 movable therein and having its rod 9 connected to the front end of apower arm 10 pivoted at 11 to the frame and the motion of the power arm10 is transmitted to the rear arm of the yoke or lever 4 through togglelinks 12 and 13, the toggle link 12 bein rigid with the power arm 10.The cylin er is single acting, and a counterwcight 14 and countersprings15, 16 open the press when the motive fluid as air is exhausted Afromthe cylinder 7. Hence, the power means tending to open the pressincludes the prime mover or fluid motor including the cylinder 7 andpiston 8, and the counterweight 14 and springs 15, 16. The

'cylinder 7 is pivoted at 17 to the frame to have an oscillatingmovement during the movement of the piston.

The means for controlling the operation of the power means may be of anysuitable form, size and construction and that here shown in so far asany one machine is concerned or in so far as it is applicable to onemachine, forms no part of this invention but constitutes the subjectmatter of my pending application, Ser. No. 671,568 filed October 29,1923.

In the illustrated embodiment of my invcntion, a set or series of threemachines are shown operated in triple tandem but any other plural numberof machines may be employed, the number being determined by the numberof machines a single operator can tend most eiciently or with minimumloss of time. Each of these three machines may be substantially likethat shown in Figure 3, and 7, 7a and 7b designate respectively thecylinders of the power means of such machines.

The power means for each machine when the machine is used individuallycomprises a valve casing 18, Figure 2, a normally closed spring pressedintake valve 19 in the casing and a normally open exhaust valve 20connected to the valve 18 by a stem 21 so that the valves 19 and 20 actas a unit. The valve 19 is pressed to its seat by a spring 22. Thesevalves are operated by a manually operated member as a push button 23,the motion of which is transmitted through a lever 24 through anotherlever 25 acting on the stem 26 of the exhaust valve 20. When this button23 is depressed as shown in Figure 2, obviously, the exhaust valve 20will be closed and the intake valve 19 open permitting air to pass froma feed line 27 through the valve casing 18 through a. pipe 28 to acoupling 29 connected to the head 30 of the cylinder 7, which coupling29 opens into a passage 31 in said head and the passage communicatesthrough a port 32 with the interior of the cylinder 7. e

In order that two hands must be used to close the press, another pipe 33communicates also with the coupling 29 and this pipe communicates with avalve casing 34 having a normally open exhaust valve 35 therein which is-operated by ya manually operated member as a push button 36 similar tothe push button 23, the motion being transmitted by 0 the push button 36through levers 37 and 38 to the exhaust valve 35, these levers beingsimilar to the levers 24, 25 operated by thehandle or push button 23.Obviously, the manual or push button 36 must be held depressed in orderto close the exhaust valve 35 when the manual or push button 23 isdepressed for if it is not, the air instead of passing into the cylinderthrough lthe port 32, will pass out the exhaust valve 35 through thepipe 33. When the exhaust valves 20 or 35 are open the air is free toexhaust from the valve casings 18 and 34 through the passa-ges 39, 40.The operator, if he uses the push buttons 23, 36 must hold themdepressed until the press is closed or until the piston 8 is near thelimit of its out stroke, and means is provided for then automaticallyholding the combined intake valve 19 and the exhaust valve 20 in 0 itsoperated position and also the exhaust valve 35 in its operated orclosed position.

This means is here shown as fluid operated motors, eac-h consisting ofpressure chambers 41 or 42, a diaphragm 43 or 44 in said chamber andacting on push rods 45 or 46 actlng on the lever 25 or 38, each pressurechamber 41 or 42 being connected by a pipe 47 or 48 to a coupling 49which is connected by a pipe 50 to a. casing 51 on the side of thecylinder 7, whichcasing communicates with a port 52 so located in thecylinder wall as to be uncovered as the piston approaches the end of itspower stroke. Thus, when the piston uncovers the port 52, the diaphragms43 and 44 in the pressure chambers will be operated to hold the valves19, 20 and 35 in the position to which they have been manually operated.

In order to release the. air in the cylinder of each machineindependently of the other machines and thus open the machinesindividually, means is provided for exhausting the air from thediaphragm chambers which means is manually operable. This means as hereshown includes a valve casing 54 having a normally closed spring pressedexhaust valve 55 therein which is operated against its spring by ahandle 56 grouped with the manual or push button 36, the casing 54 beingconnected by a pipe 57 to the pipe 48. Thus, when the handle 56 isoperated to open the exhaust valve 55, the pressure will exhaust fromthe diaphragm chamber 42 and also from the diaphragm chamber 41 thuspermitting the intake valve 19 to close and the exhaust valves 2O and 35to open and hence the air to exhaust from the cylinder 7 so that thepress will open by the counterweight 14 and springs 15, 16. Thesemanually operated members 23, 35 and 56 and the parts operated therebyare all mounted within a suitable box or casing 58 mounted on eachmachine on the Ifront side thereof. The piston 8 is provided witha valvehead 59 carried by a stem 60 projecting in advance of the piston, thestem being slidable in the piston rod 9 against the action of a spring61. This valve 59 delays the full opening of the port 32 until thepiston has travelled part of its power stroke and retards the exhaustthrough the port 32 as the piston approaches its initial position or inother words, this valve prevents a sudden starting and stopping of thepiston under the iniuence of the counterweight and springs. It forms nopart of this invention. The valve 59 need not tightly close the port 32to the inlet of air but in order that the machine may operate in theevent the valve 59 does tightly close the port 32, a by-pass is providedaround this port from the passage 31 including smaller Vpassages 32a,335.

The controlling valve mechanism operated by the push buttons 23. 36 andthe valve 59 specifically described, forms no part of this invention. l

The controlling member associated with -each machine and arranged to beautomatically moved-and operated by the operator or other personapproaching the machine, and connected to the controlling means of thenext machine in the series to effect the closing of the next machine, asbefore stated, in th1s embodiment of my invention, includes a sensitiveelement as a section of the ioor or Wide treadle which must necessarilybe stepped on and lwhich the operator can not avoid stepping on whenapproaching the machine.

62, 62a or 626 designate the controlling member or floor section of eachmachine, each section being depressible against the action of a spring63 tending to return it to its normal position. As here shown, eachsection is hinged at 64. Each controlling member is connected to thecontrolling mechanism of the next machine to effect the closing of'suchmachine. These connections as here shown comprise a link 65 connected toa lever 66 acting on a stem of a normally closed spring pressed intakevalve 67 which is held in its closed position in a casing 68 by a spring69, thev valve casing 68 bein connected by a pipe 70 to the feed pipe 2and by an outlet pipe 71 tothe coupling 49 of another machine which isoperated by cylinder 76 so that the air pressure can operate thediaphragm in the chamber 416 and 426 corresponding to the chambers 41and 42 of the machine operated by cylinder 7, and thus automaticallyclose the combined intake' and exhaust valves in the casing 186 andclose the exhaust valve in the casing 346 so that the air will enter thecylinder 76 from the feed pipe 276 and actuate the piston in thecylinder 76 the same as heretofore Adescribed in connection With thecylinder 7. Thus, the depression of the treadle or floor section 62causes a remote machine to be closed.

Likewise, when the operator steps on the treadle or floor section 626,the lever 666 will be operated through link 656 to open the intake valvecorresponding to the intake valve 69 in the casing 686 permitting air topass from line 276 through pipe 706, casing 686 and pipe 716 to coupling49a of the machine operated by cylinder 7a so that the parts associatedwith said cylinder 7a and designated respectively 41a, 42a, 34a and 18aare operlted to effect the How of air to the cylinder Likewise, when theoperator steps on the Hoor section 62a, the lever 66a is operatedthrough link 65a toe'ect the control of air from the feed line 27athrough pipe 70a, valve casing 68a and pipe 71a to the coupling 49 oftherst machine or that is, the machine operated by the cylinder 7. As thusf ar described. when the operator steps on the treadle 62 he effects theclosing of the machine operated by cylinder 76 he has just left. Meansis provided by which the movement of the treadle or floor section 62,62dor 626 effects the opening of that machine if it has not beenpreviously openedas will be presently described. This means consists ofa link 72 connecting the treadle 62 to a lever 73 acting to open anormally closed spring pressed valve 74'in a valve casing 75 which isconnected by a pipe 76 to the pipe 47 .through which both of thediaphragm chambers 41, 4 2 are exhausted. Obviously, when the valve 74is thus opened, the air in the diaphragm chambers-41, 42 will beexhausted permitting the valves 19, 20 and 35- to return to their normalposition, that is, the position in which the exhaust valves are open sothat air can exhaust from the cylinder 7 and hence the press opens. Thecorresponding parts for the machines operated by the cylinders 7a and 76are designated `respectively,"72a, 726; 73a, 736; 75a, 756; 76a, 766.

Preferably, meansl is provided by which when the operator leaves onemachine and thus removes his weight from the ioor treadle 62, 62a or626, the return of this treadle by its spring 63 operates the mechanismto exhaust the air in the diaphragm chambers corresponding to theydiaphragm chambers 41, 42 of the press to which he is next going.

This means consists of a cylinder 77 having a piston 7 8 'movabletherein and connected by a rod 79 to the treadle 62, the cylinder beingconnected by a pipe 8O to a pressure operated motor 81 or diaphragmchamber which actuates a plunger 82 acting on the release handle 56 tooperate said handle of the machine to which he is next going to operate,to exhaust the air from the chambers corresponding tothe chambers 41, 42and thus permit the companion' press to open. 'Ihe corresponding partsjust described are designated in the othermachines respective 77a; 776;79a, 796; 80a, 806; 81a, 816; 82a, .826. Each cylinder is also providedwith a check valve control pipe 83, 83a or 836 preventing it frombecoming air bound.

-In operation, any one machine may be closed independently of the othersby operating the push buttons 23, 36 and opened by operating fthe trip.handle 56. Assuminy that the presses operated bythe cylinders 7 and 7a`are closed and that operated by' the cylinder 76 is open, as this isthe, order they will automatically AeventualljT tak'e regardless ofwhetheror not they are all open at the start or of any other conditionas to opening and closing they may be in at the start, the operator goesto the machine actuated by the cylinder 76, which machine is open andplaces a garment thereon and as he steps on treadle 62 of the machineoperated by the cylinder 7, the machine operated by cylinder 76 closes.As long as the operator is workingA at this machine, he is, standing onthe treadle 62. ,When he steps on the treadle 62, through the Alllmechanism previously described, the intake valve in the casing 68 is.opened to permit air to pass from the main line 27, through pipe71toautomatically operate the controlling mechanism of the machineoperated by cylinder 7 b so that this machine is closed after theoperator has taken his position on the treadle 62 of the rst machineoperated by the cylinder 7. After the operator is through working on themachine operated by cylinder 7 and steps off the treadle 62, the triplever 56a of the next machine actuated by cylinder 7a is operatedthrough cylinder 77 and the pressure set up therein by the piston 78,pipe 80 and pressure operated motor 81a, thus relieving the controlmechanism of the machine operated by cylinder 7a so that it opens and isopened by the time the operator reaches it. As the operator takes hisposition on the treadle 62a of the second machine, the valve in casing68a is operated to control the flow of air to the control mechan-ism ofthe first machine operated by cylinder 7 so thatthe first machine isclosed when the operator is away from it and attending the secondmachine. As the operator steps 0H from the treadle 62a, the machineoperated by cylinder 7b opens and as he steps on the treadle 63a, thesecond machine operated by cylinder 7a closes. Thus, at no time can theoperator be at a machine when it is closing unless he is closing themachine by the use of the two hand control. If anybody at any time stepsup to the machine onto the treadle 62, 62a or 62?) all that will happenwill be that the machine will open or if an operator is attending onemachine or just stepping on one machine and thereby closing another andsome other person comes up to the other machine, it will not close assuch other person must stand upon the control member 62, 62a, or 621) inorder to get near enough to the machine to be in danger.

The sides and back of the machine may if desired be fenced in asindicated at F or protected so that no one can approach the machineexcept from the front side where the control members or floor sectionsare located.

What I claim is:

1. The combination of a plurality of machines having opening and closingmovements, power means for opening and closing the machines, means forcontrolling the operation of the power means including a controllingmember associated with each machine and positioned in the path ofapproach to the machine so as to be engaged and operated by a personapproaching the machine and connected to the controlling means of theother machine to effect the closing of said other machine.

2. The combination of a plurality of machines having opening and closingmovements, power means for opening and closing the machines, means forcontrolling the operation of the power means including a controllingmember associated with each machine and positioned in the path ofapproach to the machine so as to be engaged and operated by a personapproaching the machine to open said machine and connected to thecontrolling means of the other machine to e'ect the closing of saidother machine.

3. The combination of a plurality of machines having opening and closingmovements, power means for opening and closing the machines, means forcontrolling the op- 'eration of the power means of each machineincluding a controlling member associated with each machine andpositioned in the path of approach to the machine so as to be engagedand moved in one direction by a person approaching the machine andconnected to the controlling means of another machine to effect theclosing of such other machine, means for returning said controllingmember to its normal position and means operated by such return movementto operate the controlling mechanism of still another machine to openthe last machine as the person leaves the first machine.

4. The combination of a plurality of machines having opening andclosino` movements, power means for opening and closing the machines,means for controlling the operation of each machine by the power meansincluding a controlling member associated with each machine andpositioned in the path of approach to the machine so as to be engagedand operated by the operator approaching the machine, and connectionsbetween said member and the controlling means of another machine toeffect the closing of said other machine, the controlling membercomprising a movable loor section arranged to be operated and depressedby the weight of the operator.

5. The combination of a plurality of ma` chines having opening andclosing movements, power means for opening and closing the machines,means for controlling the operation of each machine by the power meanscomprising operator operated parts by which each machine may be openedand closed independently of the other machine, and also including acontrolling member associated with each machine and positioned in thepath of approach to the machine so as to be engaged and operated by theoperator approaching the machine and connectedto the controlling meansof another machine to effect the closing of said other machine.

6. The combination of a plurality of machines having opening and.closing movements, power means for opening and closing themachines,means for controlling the operation of each machine by thepower means comprising operator-operated parts by which the machine maybe opened and closed independently of the other machine and alsoincluding a controlling member associated with each machine andpositioned in the path of approach to the machine so as to be engagedand operated by the operator approaching the machine and connected tothe controlling l 0 means of another machine to effect the closing ofsaid other machine, the operator operated parts individual to eachmachine comprising two manually operated members both of which must beoperated to effect the closing of the machine.

7. The combination of a plurality of machines having opening and closingmovements, power means for opening and closing the machines, means forcontrolling the operation of the machines by the power means including acontrolling member associated with each machine and connected to thecontrolling means of another machine to ei'ect thevclosing of the nextmachine, the control-l ling member comprising a movable floor sectionpositioned in the path of approach to the machine to be depressed by theweight of the operator, means for returning the floor section to itsnormal position, and connections operated by the return movement of thefloor section and connected to the.'v controlling means for anothermachine to operate the same to open said other machine.

8. The combination of a plurality of machines having opening and closingmovements, power means for opening and closing the machines, means forcontrolling the operations of the machines by the power means includinga controlling member associated with each machine and positioned in thepath of approach of the machine so as to be engaged land operated by theoperator approaching the machine and connected to the controlling meansof another machine to effect the closing thereof, the controlling meansfor each machine including manually operated members o erable to effectthe opening and closing of the machine independently of the othermachine, and connections operated by the returning movement of thecontrolling member of each machine to operate the member which'eflectsthe opening of said other machine. i

9. The combination of a plurality of machines having opening and closingmovements, power means for opening and closing the machines, meansindividual to the machines for opening and closing them, means locatedat each machine for operating the controlling means of another machineto close said other machine while the first machine is being opened, thelast mentioned means including a member positioned in the path ofapproach to the machine so as to be -engaged by the operatorV whenWorking at one machine, and connections operated by said member whenmoved in one direction to control the closing of another machine.

10. The combination of a lurality of machines having opening andpclosing movements, powermeans for opening and closing the machinescomprising a motor, and means forcontrolling the operation of each motorcomprising fluid pressure controlled valves,

a controlling member associated with each machine and positioned in thepath of approach to the machine so as to be engaged by a personapproaching the machine, and a valve operated by said controllingmember, said valve controlling the flow of motive iuid to the fluidpressure operated valve of the motor of another machine to operate thesame.

ll. The combination ef a plurality of machines. having opening andclosing movements, a motor for opening andiclosing each machine, meansfor controlling the operation of each motor including a iiuid pressurecontrolled valve, a controlling member associated with each machine andpositioned in the path of approach to the machine so as to be engagedand moved in one direction by a person approaching the machine, a valvefor` controlling the flow of motive Huid to the pressure controlledvalve of another machine for closing said other machine, means tending`to move the controlling member of each machine in the other directionand thus return said member to its normal position, the controllingmeans for each machine including an exhaust valve for releasing saidpressure operated valve, and pressure creating means operated by thereturn movement of each controlling member of eachmachine and connectedto the release valve of another machine to operate said release valveupon the return movement of said controlling member connected thereto.

12. The combination of a plurality of machines having opening andclosing movements, a fluid motor for opening and closing each machinemeans for controlling the closing of eac comprising operator operatedvalves, fluid pressure means for holding the valves in their operatedpositions, and a release 'member operable to release the pressure fromthe valve holding means, the controlling means also including acontrolling member associated with each machine and positioned in thepath of approach to the machine so as to be engaged 'and operated by theoperator approaching the machine, means including a valve connected tothe controlling member of each machine to be operated thereby during themovement thereof for controlling the operation `of lthe valve holdingmeans of another machine;

13. The combination of a plurality of machines having opening andclosing movements, a pressure operated motor for opening and closingeach machine, means for controlling the closing of each machine by theiiuid motor comprising operator-operated valves, Huid pressure means forholding the valves in their operated positions, a release memberoperable to release the pressure :from the valve holding means, thecontrolling means also including a controlling member associated witheach machine and ositioned in the path of approach of the mac ine so asto be engaged and operated in one direction by the operator approachingthe machine, means for returning the controlling member in the oppositedirection, means including a valve connected to the controlling memberto be operated thereby during the movement thereof in one direction forcontrolling the operation of the valve holding means of another machine,and pressure means, actuated by the return movement of each controllingmember connected to the release valve holding means of still anothermachine.

14:. The combination of a plurality of machines having opening andclosing movements, power means for opening and closing the machines,means controlling the operation of the power means including acontrolling member associated with each machine and positioned in thepath of approach to the machine, so to be engaged and operated by aperson approaching the machine to open said machine, and connected tothe controlling means of the other machine to eEect the closing thereof,means for returning the controlling member to its normal position, andmeans connected to each controlling member and operated by the returnmovement thereof to operate the controlling mechanism of another machineto open the same.

15. The combination of a plurality of machines having opening andclosing movements, power means for opening and closing the machines,means for controlling the 0peration of the power means including acontrolling member associated with each machine and postioned in thepath of approach to the machine so as to be engaged and operated by aperson approaching the machine, and operating connections between eachcontrolling member and the controlling means of another machine, wherebythe controlling member of each machine is a remote control for thecontrolling means of another machine.

16. The combination of a plurality of machines having opening andclosing movements, motor means for closing the machines and holding themclosed, a control member for controlling the operation of the motormeans of each machine, a release member for the motor means of eachmachine, means for operating the release member of each machine,connections between the control member of one machine and the releasemember operating means of a second machine for controlling the operationofthe release member of the second machine, whereby the release memberof the second machine is operated from the controlling member of thefirst machine.

17. The combination of a plurality of machines having opening andclosing move- -means is released, means ments, means including a singleacting pressure operated motor for closing each machine and holding itin closed position, means tending to open each machine when the motor oneach machine for controlling the flow of motive fiuid to the motor ofanother machine, a normally closed release valve for controlling theiiow of fluid from the motor, a plunger for opening the release valve ofeach machineand means associated with the plunger and connected to thecontrolling means of another machine for operating said plunger. f

18. The combination of a plurality of machines having opening andclosing movement, means for closing each machine including a singleacting pressure operated motor, means for controlling the flow of motivefluid to the motor of each machine, a normally closed release valve forthe motor of each machine, a manually operated member therefoi, andmeans operated by the controlling means of each machine forautomatically operating the release member of asecond machine to openthe latter machine.

19. rlhe combination of a plurality of machines having opening andclosing movements, means for opening and closing each machine andholding it closedincluding a pressure operated motor, valve means oneach machine for controlling the iioW of motive fluid to the motor ofanother machine to close the other machine, a second valve ymeans foreach motor for controlling the exl haust of fluid and the opening of themachine, a manual member for operating the exhaust valve means of eachmachine to effect the opening of that machine and an additionaloperating member for said exhaust valve means of each machine, saidadditional member being grouped with the controlling means of anothermachine.

20. The combination of a plurality of ma-h chines having opening andclosing movements, means for opening and closing each machine andholding it closed including a pressure operated motor, means on eachmachine for controlling the flow of motiveI fluid to the motor ofanother machine to close the other machine, a second valve means foreach motor for controlling the exhaust of fluid and the opening of themachine, a manual member for operating the exhaust valve means of eachmachine to effect the opening of that machine, and an additionaloperating member for the exhaust valve means of each motor, saidadditional member being grouped with the controlling means of anothermachine.

21. The combination of a plurality of machines having opening andclosing movements, motor means for closing the machines and holding themclosed, means on each mamotor means of another machine Lee-feos Y othermachine, release means for controlling the openingof each machineincluding a manually operated lever, additional ,means for operating thelever including a plunger, for thrusting againstv the lever andactuating means therefor, means for controlling the actuation oftheplunger actuating means, including connections between the controllingmeans of one machine and the plunger actuating means o f another machinewhereby the controlling means of one machine operates the release leverof another machine for opening the other machine.

In `testimony whereof, I have hereunto signed my name, at Syracuse, inthe county of Onondaga, and in the State of New York, this 22nd day ofOctober, 1926.v

ERNEST f DAVIS.

